The Temporal and Spatial Distribution of Hazy Days in Cities of Jiangsu Province China and an Analysis of Its Causes

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Year</td><td class="align_center">Heavy haze</td><td class="align_center">Moderate</td><td class="align_center">Hazy day</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">1980s</td><td class="align_center">3.8</td><td class="align_center">5.4</td><td class="align_center">100.3</td></tr><tr><td class="align_left">1990s</td><td class="align_center">4.8</td><td class="align_center">6.9</td><td class="align_center">94.4</td></tr><tr><td class="align_left">2000s</td><td class="align_center">6.1</td><td class="align_center">9.9</td><td class="align_center">115.2</td></tr><tr><td class="align_left">2010–2012</td><td class="align_center">6.3</td><td class="align_center">8.9</td><td class="align_center">122.4</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Decadal change of haze/d⋅(per⋅station)<sup>−1</sup>. 

Advances in Meteorology

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Table 1

Table 1: The Temporal and Spatial Distribution of Hazy Days in Cities of Jiangsu Province China and an Analysis of Its Causes 